Francis j



Patented ug. 26, 1924.

UNITED STATES FRANCIS J. MCMURDIE, OF KALAMAZOO, MICHIGAN.

DOOR OR CLOSURE.

Application filed November 8, 1923.

To all whom t 'may concern Be it known that T, FRANCIS J. MCMUR- nin, a citizen ot' the United States, residing at the city and county of Kalamazoo, State or" Michigan, have invented certain new and useful Improvements in Doors or Closures, of which the following is a specification.

This invention relates to improvements in doors or closures.

The main objects of this invention are:

First, to provide an improved door or closure for air washers and the like where it is desired to secure a tight joint between the door and its trame or casing.

Second, to provide an improved door or closure with clamping means which may be adjusted to secure the desired clamping action and to compensate for wear on the gaskets or the like.

Third, to provide an improved door or closure with supporting means whereby it may be clamped to its casing and at the same time permit the swinging of the door from either side of the casing.

Fourth, to provide a structure embodying these advantages which is very economical and at the same time strong and durable and simple in adjustment.

Objects pertaining to details and economies of my invention will definitely appear from the detailed description to follow.

1 accomplish the objects of my invention by the devices and means described in the following speciiication. The invention is clearly defined and pointed out in the claims.

' A structure which is a preferred embodiment oi my invention is clearly illustrated in the accompanying drawing forming a part of this application, in which:

Fig. I is a front elevation of a door and its casing embodying the features of my invention.

Fig. Il is an enlarged detail section on a line corresponding to line 2 2 of Figs. and III.

Fig. III is a detail section on a line corresponding to line 3-3 of Figs. I and II.

In the drawing the sectional views are taken looking in the direction of the little arrows at the ends ot' the section lines and similar numerals of reference indicate similar parts in all of the views.

Referring to the drawing, l represents the body of an air washer or other structure and 2 the door frame or casing which is preferably in the form of a casting. This Serial No. 673,627.

door frame has a forwardly projecting groove-like gasket seat 3 adapted to receive the gasket 4 which projects beyond the face of the casing as shown in Fig. II.

The door 5 has a flat face 6 adapted to close against the gasket. This door in the structure illustrated is also a casting and is provided with arm-like hinge members 7. The door fra-me has pairs of pintle ears 8 arranged in spaced relation thereon, the pivot ears being provided on both sides of the casing, in the structure illustrated, so that the door may be swung in either direction as may be convenient, and also sol that a uniform clamping action may be had on the door.

The pintles 9 for the hinge members 7 engage the openings l0 in the ears 8, the openings lO being oblong holes so as to permit a limited lateral movement of the hinge members and door, permitting its being clamped upon the gasket. The pintles are removable so that, as stated, the door may be swung in either direction.

The door is clamped upon the gaskets by means of the cams l1 which are carried bv the links l2 mounted on the pivot bolts T3 carried by the ears 8, the bolts lf3 being arranged at the inner sides of the pintles 9. The cams il are rotatably supported on the pivots 11i mounted on the outer ends of the links, these pivots having eccentrically disposed threaded portions 15 disposed through the links to receive the clamping nuts 16 so that the eccentric pivots may be secured in their adjusted positions, the adjustment being to vary the clamping action of the cams.

The cams are provided with handles 17 for convenience in manipulation.

l/Vith the parts thus arranged the door is effectively clamped against the gasket and the clamping action may be varied or adjusted by the adjustment ot' the ecc-entries 14 as the gaskets become worn or compressed.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

l. ln a structure of the class described, the combination of a door trame provided with a gasket projecting beyond its face, pairs of spaced ears disposed in opposed relation on said frame, a door provided with opposed arms projecting between said ears, removable pintles for said arms engaging said ears for limited lateral movement, clamping earns adapted to be engaged with said arms, supporting links for said cam-s pivotally mounted.l on said pintle ears, and eccentric pivots for said cams adjustably mounted on said links whereby the clamping action of the cams may be varied.

2. In a structure of the class described, the combination of a door frame provided with a gasket projecting beyond its face, pairs of spaced'ears, a door provided with arms projecting between said ears, pintles for said arms engaging said ears for limited lateral movemen't,'clamping cams adaptedto be engaged with said arms', supporting links for said cams pivotally mounted on said pintle ears, and eccentric pivots for said cams adjustably mounted on said links whereby the clamping action oi the cams may be varied.

3. The combination of a pair of spared supporting ears, a hinge member projecting between said ears, a pintle for said. hinge member engaging said ears for limited lat eral movement, a clamping cam for said hinge member, supporting links for said cam pivotally mounted on said pintle ears, and an eccentric pivot for said cam adjustably mounted on said links whereby the clamping action of the cam may be regulated.

4;. The combination of a pair of spaced supporting ears, a hinge member projecting between said ears, a pintle for said hinge member permitting` limited lateral movement of said hinge member, a clamping cam for said hinge member, supporting links for said cam pivotally mounted on said pintle ears, and an eccentric pivot `for said cam adjustably mounted on said links whereby the clamping action of the cam may be regulated.

5. 'Ihe combination of a door frame, a door, a pair of spaced ears on said door frame, a hinge member on said door, a pintle coacting with said hinge member and ears to permit clamping movement of the door toward the trame, a clamping cam for said hinge member, and a support tor said clamping cam including an eccentric pivot, said pivot being adjustable tovary the clamping action of the cam.

In witness whereof, I have hereunto set my hand.

' FRANCIS J. MCMURDIE. [n s] 

